复制代码 代码如下:

//获取元素的位置

function getLeft(obj) {

if (obj == null)

return null;

var mendingObj = obj;

var mendingLeft = mendingObj.offsetLeft;

while (mendingObj != null && mendingObj.offsetParent != null && mendingObj.offsetParent.tagName != "BODY") {

mendingLeft = mendingLeft + mendingObj.offsetParent.offsetLeft;

mendingObj = mendingObj.offsetParent;

}

return mendingLeft;

};

function getTop(obj) {

if (obj == null)

return null;

var mendingObj = obj;

var mendingTop = mendingObj.offsetTop;

while (mendingObj != null && mendingObj.offsetParent != null && mendingObj.offsetParent.tagName != "BODY") {

mendingTop = mendingTop + mendingObj.offsetParent.offsetTop;

mendingObj = mendingObj.offsetParent;

}

return mendingTop;

};

//获取鼠标的位置

function getMousePosition(event) {

var position = {

MouseX: 0,

MouseY: 0

}

if (event.pageX != undefined) {

position.MouseX = event.pageX;

position.MouseY = event.pageY;

}

else {

var target = EventUtil.getTarget(event);

position.MouseX = event.offsetX + getLeft(target);

position.MouseY = event.offsetY + getTop(target);

}

return position;